Gauge-glass fitting



Patented Apr. 29, 1930 UNITED STATES GEORGE ERNST, F ZN'IETMTARK, NEW JERSEY GAUGE-GLASS FI'PLINGv Application iled December 1, 1927. Serial No. 236,971.

This invention relates to combined valve gauge head is detachable from the valve body and includes improved means for rendering the head fluid tight.

A further object of t provision of a device of the nature described in which improved means is provided for adjustably limiting the movement of the valve stem.

Another object of the invention is the production of a device of the character specified, in which improved means is provided permitting the valve to be ground inl without disassembling the various parts associated therewith.

A still further object of the invention is to furnish a structure of the species mentioned having improved means for making the stem fluid tight'in the valve body.

Still another object of the invention is the production of a device as above set forth having an improved stem guiding and coacting frame on the valve body.

Still a further obj ect of the invention is to produce a deviceas herein described, wherein an improved removable valve seat structure of a renewable ty e is provided.

A still further o ject of the invention is to create a device of the character described having a stem guiding and coacting frame secured in an improved way to the valve body.

With the foregoing and other objects in view the invention consists in the arrangey ment and combination of parts hereinafterl described and claimed, and while the invention is not restricted to the exact details of construction disclosed or suggested herein, ystill vfor the purpose of illustrating a practical embodiment thereof` reference is had to the accompanying drawings in which like reference characters designate the same parts in the several views, and in which- Figure 1 is a side elevation of a valve body and a lower gauge head, embodying the invention.

Fig. 2 is a plan view ofthe device shown in Fig. i.

his invention is the A ,valve to b e controlled as Fig. 3 is a vertical section taken on the )Line 3--3 of Fig. 2. F ig'. 4 is a vertical transverse section taken on .the line 4-4 of Fig. 2.

Fig. 5 is a sectional'detail view't-aken o1 l the 65 line 5-5 of Fig. 2.

Referring in detail to the drawings, L) denotes a device embodying the invention, one` opening of which is through the co-acting gauge head, as will be set forth hereinafter. Said device includes a valve body l1. Mounted inthe said body is a rotatable stem 1'2, operative by a lever 13, to the arms of which are* connected hand chains 14. This permits the desired, irrespective of its elevation. 5 Y

Connected to the valve body 11 is a gauge head'l, in which is secured ahgauge glass 16' for indicating the fluid level in a boiler, or the like. Said head has removable connection with the body, which connection permits said head tov be' rotatably adjusted about its axis, transversely to that of the b .dy-11. The connection mentioned takes preferably the form of a conventional union coupling 17 which is 75 linternall threaded to engage a nipple 18 extending aterally from the valve body.

The construction of the gauge head is of the type described in my co-pending application, Serial No. 185,142, filed April 20th, 1927. 8o

' Briefly set forth, however, the same comprisesa split gland 19 for the gauge glass packing, (not shown). The portions of said gland are caused to operatively bear on the packing by means of a yoke structure 20 mounted on 85 the head 15, and having a pressure exerting screw 21 coacting therewith. More specifically, the yoke 20 includes a cross member 20a which is threaded to receive said screw, and to which are pivotally connected at 20b 9G the arms 20c on the ends whereof the gland portions are mounted, as by threading at 20d. The. end of screw 21 may have fixed but rotatable bearingconnection with the head 15 as shown at 21a so'as to be retained theres-n. 95 Since the screw is on a side of the head opposite to the gland, it is apparent that on tightening the screw, the said glandwill com ressthe packing to make the glass 16 iuid tig t.

In order to effect a tight connection be- 1260 rnu .or closin vthe valve.

tween the head 15 and the body 11, a gland 22 may act on a gasket 23 set into a recess in the said body, as a result of tightening the coupling 17, after the head has been adjusted at the desired angle with respect to the body.

Mounted on the valve 4body is a frame 24 which-is rotatablev about theaxijs of the stem 12, and includes a cylindrical member 24B', adapted to receive an annular extension 11a of the body. Extending from 'said member 24 are a pair of side arms 24"` which are atter is provided with an outward extending boss 24d whichis threaded internallyto engage a screw portion '12 of theestem 12, whereby the latter is operative for opening Saidv boss is also ex- `ternally t readed to engage a stop or cap 25.

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lThe said cap isv adjustably screwed onto said boss to cause the end wall 25a thereof to abut the adjacent end ofthe screw portion 12 so as to limit the rotation of the stem for open- .ing the valve.V Ay set screw, 26 serves to fix "the said cap in adjusted gposition.

. The said Yframe maybe secured to the body ..11 by av` plurality of screws 26 which are transverse to the axes of the frame, and body,

l,being threaded through the ring 24a toabut g thefannular extension 11l on which the said 3o ring is rotatably received. A groove 11c may be formed in said extension into which the pressure ends of said screws may enter, regardless of the angularity of the frame 24. Thus the last vmentioned part rwill be held against unintended rotation or movement away from the valve body. The screws., 26

Vform a simplified andimproved connectingA means, which, on being loosened, permit the said frame to be rotated 4in its position on the 40.

valve body forgrinding in the valve, as will be described hereinafter.

. To make the stem 12 tight in the said body,

a plurality of packing members 28 are disposed therein between thestem and the inner side ofthe annularextension 11a., A ygland 29Ais adapted to compress the packing members, the latter being forced inward of the valve body by ybolts30l that. are pivotally secured at. 31 to the ring 24a of the said frame.

These bolts are swingable laterally into the slots 29 formed in ilanges 29b projecting from said gland 29, so that'on tightening Vdown the wing nuts 32, the gland is operatively actuated. -Since the plane of the bolts 30 is transverse to that of the arms 24", said wing nuts are easily accessible. A v j A valve seat structure includes a tubular member l34 removable from the valve body and considerably elongated to permit a plurality of new seats torbe cut thereon as desired in the event that a seat 34 thereof becomes worn or injured. Said member 34 is preferably coaxial with the valve 35 borne by the stem 12. The aforementioned'vmember may be externally threaded tol be screwed joined together in a cross member 24;` VThe f struction.

rinto a sleeve 11d of the valve body. A gasket 37 may be set into a recess in the end of said sleeve for coaction with a shoulder 34 of the member 34. The latter member may also have a head 34b to facilitate gripping thereof by a tool so as to permit removal of .the member from the'valvebody externally.

At the outer end of said member 34, the same may be provided with a nipple 34c Jfor connection to a threaded device, as, for example, a flanged fitting 40. A co-operating gasket 41 may render the connection mentioned Huid tight.

Thevalve 35 may be of any standard con- As shown, it includes a stud 42, which enters a central bore in the adjacent end .of the stem 12, to which end the stud is secured by a pin 43. Y

To permit the valve body to be drained when necessary, a tap cock 44 is connected thereto in downward extending position. A packing member 45 insures tightness of the joint. 1

- In operation, should it become necessary to grind yin the valve 35, the screws 26 may be eased up in the groove 1 lc to permit the frame 24 to be rotated in its position on the valve body. The stem 12 can be turned to bring the said valve into snug seating relation, and

. the cap 25 may be moved into abutting or stop engagement with said stem. Accordingly, on rotating the said 'frame to and fro, in the usual manner, the valve will be ground in.

frame independent-of said* packing and co-v acting with the stem to limit the movement of same.` y

3. A device of the characterdescribed including a valve body, a movable stem therein, a frame on said body, means for making the stem tight' in said body, a gland bearing on said"ineans, and a bolt coacting with the frame and the gland for exerting pressure on the latter, said frame having a ring coaxially surrounding and engaging the valve body detachably to secure the frame thereto and permit rotation of the frame at a con-V stant plane with respect to the valve body.

v4. A device of the character described including a valve body, Va rotatable stem therein, and a frame mounted exteriorly on said body movable into a fixed portion of adjust-V ment, said stembeing threaded in said frame, pin means-engaging in said groove to be reabout the axis of said stem, and means on tained thereby 1n engagement on the body said frame adapted to limit the rotation of d said stem.

5. A device of the character described including a valve body, a rotatable stem'therein, packing in the body for said stem, and adjustable means on said body independent of said packing forY limiting the rotation of said stem,.a gland for said packing, and means to bear on the gland, the adjustable means bearing on the rst mentioned means.

6. A device of the character described in- `cluding a valve body, a rotatable stem therein, a frame on said body rotatable about the axis of said stem, said stem being threaded in said frame, and an adjustable threaded member coaxially carried by said frame externally of the valve body and adapted in conjunction with said frame to coact with the stem for limiting the rotation thereof and of the valve relative to said frame.

7. A device as set forth in claim f1 wherein said frame includes a ring surrounding the body, and screws extendinor through the ring to said frame secure the Frame to the valve body, the latter having an annular groove.. to

receive the screws.

8. A device of the character described 1ncluding a valve body, a stem therein, said' body and said stem having respectively a coacting seat and valve, and means having threaded engagement with said stem, said means being rotatable at a fixed distance from said seat to turn the stem to cause the valve to be ground in coincident with said rotation, said body and said means having one of them a pin and the other a circular groove coaxial with the valve and lying in a plane at right angles to the axis of thevalve, v

i said pin engaging in said groove to retain ail means rotatably in engagement with the 9.y A device of the character described, including a valve body a stem therein, said body and said stem having respectively a coacting seat and valve, means having threaded engagement with said stem, and a stop to prevent rotation of the stem relative to said means, said means being rotatable at a fixed distance from said seat to cause the valve to be ground in on rotating said means,said

body and said means having one of them a pin and the other a circular groove coaxial with the valve and lying in a plane at right angles to the axis of the valve, said pin engaging in said lgroove to retain said means rotatably in engagement with the body.

10. A device of the character described including a valve body, a stem therein, and a frame on said body rotatable about the axis of said stem into a fixed position of adjustment, the latter 'being threaded in said frame, the body having a groove, the frame having ature.

GEORGE ER ST. 

